Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A moving-picture image data-distribution method comprising: transmitting/receiving moving-picture image data constituted by a plurality of image frames among a plurality of information terminals interconnected via a network, wherein in a distribution operation of the moving-picture image data from a transmission-side information terminal to a reception-side information terminal as a mode of bidirectional data communication among the plurality of information terminals, the transmission-side information terminal to be a transmission source notifies transmission-limit information thereof to the reception-side information terminal, before transmitting the moving-picture image data to the reception-side information terminal, the transmission-limit information indicating an upper limit of the number of transmission/reception units regarding image frames which can be transmitted per unit of time, the reception-side information terminal issues a plurality of transmission requirements for moving-picture image data to the transmission-side information terminal in response to the notified transmission-limit information, until next transmission-limit information is notified, and when the reception-side information terminal repetitively issues the transmission requirement to the transmission-side information terminal, with reception of the moving-picture image data from the transmission-side information terminal, the reception-side information terminal calculates, in advance, at least one data amount of a receivable amount of image frames attributable to a band limitation of the network at the moment where the transmission requirement is issued and an own permissible load amount of image frame display processing, and notifies the transmission-side information terminal of an upper limit of at least any one of the data amount and a data structural element that is used as a basis for calculation of the data amount, as reception-limit information, wherein the data structural element includes at least any of the number of transmission/reception units per unit time regarding image frames, an image resolution, and the number of bits per pixel, wherein the moving-picture image data is constituted by a plurality of frame groups each of which includes at least one image frame and can be reproduced independently from a previously-positioned frame group in a time axis direction, and wherein the transmission/reception units regarding image frames correspond to the respective frame groups constituting the moving-picture image data.
A method for distributing video data across a network of interconnected devices involves a sender and a receiver exchanging information to optimize data flow. The sender informs the receiver about its transmission limits (maximum transmittable data units per time unit). The receiver then requests video data, specifying the amount it can handle based on available network bandwidth and processing capacity. This receivable amount is determined by considering either the network bandwidth limitation or the receiver's processing load for displaying video frames. The receiver notifies the sender of its receiving limit by specifying a data amount or data structural elements (frame number, resolution, bits per pixel). Video data is divided into independently reproducible frame groups, which serve as the transmission/reception units.
2. A moving-picture image data-distribution method according to claim 1 , wherein the transmission-side information terminal having received a transmission requirement from the reception-side information terminal transmits, to the reception-side information terminal that has issued the transmission requirement, moving-picture image data whose data amount is limited in accordance with at least any one of a data amount that falls within an own permissible load range at the moment where the transmission requirement had been received and the data amount requested by the reception-side information terminal, with respect to a data structural element indicated in the received reception-limit information.
Based on the moving-picture image data-distribution method previously described, when a sender receives a request from a receiver, the sender only transmits video data that adheres to certain constraints. Specifically, the amount of data transmitted is limited by either the sender's own processing capacity at the moment of the request OR the data amount requested by the receiver, based on the data structural elements provided by the receiver (frame number, resolution, bits per pixel). This ensures the sender doesn't overload itself or send more data than the receiver can handle.
3. A moving-picture image data-distribution method according to claim 1 , wherein during a distribution operation of the moving-picture image data from two or more transmission-side information terminals to a reception-side information terminal as a mode of bidirectional data communication among the plurality of information terminals, and wherein the reception-side information terminal transmits a transmission requirement signal to any of the two or more transmission-side information terminals at an own timing where image frame display can be processed.
In a video data distribution setup involving multiple senders and a single receiver, the receiver initiates data requests based on its own processing timing. The receiver determines when it can process more image frames and sends a transmission request to *any* of the available senders at that particular time. This allows the receiver to dynamically choose a sender without being pre-configured to receive from a specific source, optimizing for network conditions or sender availability. The video data is sent bidirectionally between the terminals.
4. A moving-picture image data-distribution method according to claim 3 , wherein among the two or more transmission-side information terminals, only the transmission-side information terminal having received the transmission requirement signal transmitted at the timing transmits, to the reception-side information terminal, moving-picture image data of the data amount requested by the reception-side information terminal, and the remaining transmission-side information terminal enters a transmission stand-by state of moving-picture image data until a transmission requirement to the information terminal itself is received.
Building upon the multi-sender, single-receiver video distribution method, only the sender that *actually receives* the transmission request from the receiver will send the video data. The other senders will remain in a standby mode and will only transmit when they receive a request specifically addressed to them. This optimizes network traffic by preventing multiple senders from simultaneously transmitting data to the receiver. The transmitting sender sends video data for the amount requested by the receiver.
5. A moving-picture image data-distribution method comprising: transmitting/receiving moving-picture image data constituted by a plurality of image frames among a plurality of information terminals interconnected via a network, wherein: in a distribution operation of the moving-picture image data from a transmission-side information terminal to a reception-side information terminal as a mode of bidirectional data communication among the plurality of information terminals, the transmission-side information terminal to be a transmission source notifies transmission-limit information thereof to the reception-side information terminal, before transmitting the moving-picture image data to the reception-side information terminal, the transmission-limit information indicating an upper limit of the number of transmission/reception units regarding image frames which can be transmitted per unit of time, the reception-side information terminal issues a plurality of transmission requirements for moving-picture image data to the transmission-side information terminal in response to the notified transmission-limit information, until next transmission-limit information is notified, and when the reception-side information terminal repetitively issues the transmission requirement to the transmission-side information terminal, with reception of the moving-picture image data from the transmission-side information terminal, the reception-side information terminal calculates, in advance, at least one data amount of a receivable amount of image frames attributable to a band limitation of the network at the moment where the transmission requirement is issued and an own permissible load amount of image frame display processing, and notifies the transmission-side information terminal of an upper limit of at least any one of the data amount and a data structural element that is used as a basis for calculation of the data amount, as reception-limit information, wherein the data structural element includes at least any of the number of transmission/reception units per unit time regarding image frames, an image resolution, and the number of bits per pixel, wherein the moving-picture image data is constituted by image frames each of which can be reproduced independently from a previous image frame without being compressed in a time axis direction, and wherein the transmission/reception units regarding image frames correspond to the respective image frames constituting the moving-picture image data, wherein the moving-picture image data is constituted by image frames each of which can be reproduced independently from a previous image frame without being compressed in a time axis direction, and wherein the transmission/reception units regarding image frames correspond to the respective image frames constituting the moving-picture image data.
A method for distributing video data across a network of interconnected devices involves a sender and a receiver exchanging information to optimize data flow. The sender informs the receiver about its transmission limits (maximum transmittable data units per time unit). The receiver then requests video data, specifying the amount it can handle based on available network bandwidth and processing capacity. This receivable amount is determined by considering either the network bandwidth limitation or the receiver's processing load for displaying video frames. The receiver notifies the sender of its receiving limit by specifying a data amount or data structural elements (frame number, resolution, bits per pixel). Video data is comprised of uncompressed frames that are independently reproducible. Frames serve as the transmission/reception units.
Unknown
September 16, 2014
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